Key Takeaways

  • Checkbox authority found on tax returns (e.g., Form 1040).
  • Limited scope: Only for that specific return and tax year.
  • Can discuss processing, math errors, and missing information.
  • Automatically expires 1 year from the due date of the return.
  • Cannot represent taxpayer or handle examination/collection matters.
  • No separate form required—just check the box on the return.
Last updated: January 2026

Third-Party Designee: The Checkbox Authorization

Why This Matters for the Exam

Third-Party Designee is tested because it represents the most limited form of authorization. The exam tests whether you understand its narrow scope and automatic expiration.

Expect at least 1-2 questions distinguishing Third-Party Designee from Forms 2848 and 8821.

What Is a Third-Party Designee?

A Third-Party Designee is authorized by checking a box directly on a tax return (e.g., Form 1040, line "Third Party Designee"). This grants very limited authority for processing matters related to that specific return.

How It Works

  1. Taxpayer checks the box on the return (Form 1040, etc.).
  2. Enters designee's name and phone number.
  3. Creates a 5-digit PIN for the IRS to verify identity.
  4. Authority is automatically granted when the return is filed.

Scope of Authority: What the Designee CAN Do

AuthorizedDescription
Discuss processingAnswer IRS questions about return status
Provide missing infoSupply missing data requested by IRS
Receive refund statusCheck on refund processing
Address math errorsDiscuss IRS-identified math errors
Receive copies of noticesReceive notices related to that return

Scope of Authority: What the Designee CANNOT Do

Not AuthorizedWhy
Represent taxpayerRequires Form 2848
Sign documentsRequires Form 2848
Negotiate/AdvocateRequires Form 2848
Handle auditsRequires Form 2848
Handle collectionsRequires Form 2848
Receive confidential info beyond that returnRequires Form 2848 or 8821

Expiration

Automatic Expiration: The Third-Party Designee authorization expires 1 year from the due date of the return (without regard to extensions).

Example:

  • 2024 Form 1040 due April 15, 2025.
  • Third-Party Designee authority expires April 15, 2026.

Comparison: Third-Party Designee vs. Form 2848 vs. Form 8821

FactorThird-Party DesigneeForm 8821Form 2848
How CreatedCheckbox on returnSeparate formSeparate form
ScopeProcessing only (1 return)Receive info (multiple)Full representation
Duration1 year from due dateUntil revokedUntil revoked
Sign DocumentsNoNoYes (if authorized)
RepresentNoNoYes
Who Can Be NamedAnyoneAnyoneEligible practitioners

Real-World Scenario

Scenario: You prepare a client's 2024 Form 1040. The client checks the "Third Party Designee" box with your name and phone number.

  • What you can do: Answer IRS questions about the return processing, provide missing information, check refund status.
  • What you cannot do: Handle an audit, represent the client in appeals, sign any documents.
  • When it expires: April 15, 2026 (1 year from the 2024 return due date).

If the client gets audited, you'll need a Form 2848 to represent them.

On the Exam

Expect 1-2 questions on Third-Party Designee, typically:

  1. Expiration Questions: "When does Third-Party Designee authority expire?"
  2. Scope Questions: "What can a Third-Party Designee do?"
  3. Comparison Questions: "What is the difference between Third-Party Designee and Form 2848?"

The key is to remember: Checkbox on return, processing only, 1 year expiration, no representation.

Test Your Knowledge

When does a Third-Party Designee authorization generally expire?

A
B
C
D
Test Your Knowledge

What can a Third-Party Designee do?

A
B
C
D
Test Your Knowledge

How is Third-Party Designee authority created?

A
B
C
D